Lens for glasses
OwnerMarco DE ANGELISinventor
Life of this patent
Estimating the term…
Abstract
An eyeglass lens includes an outer surface, an inner surface, and a perimeter edge. The perimeter edge includes at least one lower portion, and/or at least one outer side portion and/or at least one inner side portion and/or at least one upper portion. It is foreseen for there to be an optical axis of the lens that joins the centres of curvature of the outer surface and inner surface. In any section plane passing through said optical axis, at least one from said outer side portion, inner side portion, lower portion and upper portion of the perimeter edge is inclined, with respect to the optical axis, by a predetermined acute angle. The predetermined acute angle is selected so as to minimise the extension in width of at least one of the projections of the portions on the retina of the eye of the user.
Claims19
1-18. (canceled)
An eyeglass lens, comprising:
- an outer surface, an inner surface, and a perimeter edge,
- wherein said perimeter edge comprises at least one lower portion, and/or at least one outer side portion and/or at least one inner side portion and/or at least one upper portion,
- wherein it is foreseen for there to be an optical axis of the lens that joins the centres of curvature of said outer surface and inner surface,
- wherein in any section plane passing through said optical axis, at least one from said outer side portion, inner side portion, lower portion and upper portion of said perimeter edge is inclined, with respect to said optical axis, by a predetermined acute angle, and
- wherein said predetermined acute angle is selected so as to minimise the extension in width of at least one of the projections of said portions on the retina of the eye of the user in a central or substantially central vision condition.
An eyeglass frame, comprising:
- at least one outer side segment and at least one lower segment, each of which, observed in section, comprises a flank, a front edge and/or a rear edge,
- wherein said frame is able to be associated with at least one respective lens comprising an outer surface and an inner surface, and defining a respective optical axis that joins the centres of curvature of said outer surface and inner surface, and
- wherein in any section plane passing through said optical axis, at least one from said outer side segment and lower segment having the respective flank inclined, with respect to said optical axis, by a predetermined acute angle, said predetermined acute angle is selected so as to minimise the extension in width of at least one of the projections of said segments on the retina of the eye of the user in a central or substantially central vision condition.
Dependencies are inferred from the claim text.